The Supply Chain Working Committee of the China Petroleum and Chemical Industry Federation initiated the review of qualified suppliers in China's petroleum and chemical industry (batch 21) in December 2018. Under the principles of openness, fairness, and justice, the expert review team assessed that, CZ Explosion-proof Electric Co., Ltd. passed the review and was rated as a qualified supplier in China's petroleum and chemical industry.

Electrical equipment and electrical materials (9 companies)
1	Cz Explosion-proof Electric Co., Ltd.	Explosion-proof operation column, explosion-proof plug-in device, explosion-proof LED bar light